Fan



Dec.. 14 1926.

C. AALBORG FAN Filed Sept. 10, 1924 2 Sheets-Sheet 1 INVENTOR C/Ir/St/bn Aa/ba ATTORNEY WITNESSES:

Dec. 14 1926.

C. AALBORG FAN Filed Sgpt. 10, 1924 2 Sheets-Sheet z WITNESSES:

ATTORNEY Patented Dec. 14, 1926.

UNITED STATES PATENT OFFICE.

CHRISTIAN AALBORG, OF PITTSBURGH, PENNSYLVANIA. iAilEiIGNoR TO 'W'ESTING- HOUSE ELECTRIC & I'IIANUFACTURING GGMPANY, Er CQQRPQRATION OF PENNSYL- VANIA.

FAN.

Application filed September 10.1924.

This invention relates to fans and more we tory oveinent, as it oper tes, in order to diil se i re current 01' airiurther object of my invention is the provision ot a motor housing which will permit movement of the motor shaft in dittferent planes in order to give the fan wheel.

' .latory motion.

so an objectof the invention to prothe delivery of electrical energy to ing fan motor. Other ob ects of the part, be obvious and, in

invention will, in part, appear here- This invention, accordingly, is disclosed in the embodiment thereof shown in accompanying drawing and comprises the features of coi'istruct-ion, combination of elements and arrangements of parts which will exemplified in the const'uction hereinoin and the scope of the appliwhich will be indicated in the For a fuller understanding of the objects he inve tion. reference may as had to the fol owing: detailed description. taken in on with the accompanying drawing,

urs 1 is a Vertical sectional View show- 1 in detail, a device embodying my in- 2 is it horizontal sectional View along -11 of Fig. 1. showing details of censtrurtiou, and

l l ie'; 3 a. sectional View along the line Serial No.

In constru they so nested and dis cnne (:l' 13 l 011169 inns of this signed for and restaurants, 1 sent an appearance in harmony other furnishings rccorchngly a 1 i 2) .lS e tubular n enclose tn 1%.. coiufii tier. the canopy 18 and the tuh 12 constitute a conduit for the conductors 1., extending it'rom the overhead support to the fan motor.

showm'the section is made in two par TUCJ part being substantially hemiephe. in shape while the lower part is in the rorin of *ardly curvedrim. In order to facilitate the mounting or the motor shown generally at 17, in the housing, the run 20 is removhhly attached to the upper section in any suitable manner, such for example, as by the use of the screw bolts 21 shown in Fig. 1. As will be observed. the housing); section 16 is also substantially hemispherical in siepe and is pended in the rim member 20. in a manner .hat will be set forth. hereinafter.

The motor 17 may be of any well known type used in fan construction and is provided with a siaft 22 which extends be yond the motor casing to present an end for the reception of the tar wl'ieel 23.

As shown. the motor suspended in the housing section 15 and has the housin tion 19 attached ll will readil Elli l he understood thet'the hous ng section 1.6 may be attached to the motor casing in suitable manner. sizcln for example, as by the use of the screws 24. i

In order to i -re the tan wheel a circulator; movement, the motor 17 is rotatahly si'zsg iended in the housing so that its shalt may he lined to the axis of rotation. ll l h a View to suspen' 11g the motorin the hens ing so that it may be rotated about an axis inclined to the axis of the shaft, a universaljoint connection is provided.

An examination of Fig. 1 will show'that the universal-joint connection includes a plate 18 provided with two depending spaced arms supported in the housing section 15 by means of screws 25. Pivotally mounted between the depending arms of the member 18 is a block 26 adapted to receive the bifurcated end of a stub shaft 27. It will be readily understood that, in order to permit the universal movement of the stub shaft, the arms of the bifurcated end of the stub shaft are pivotally connected to the block 26 so that the shaft may oscillate about an axis extending at right angles to the axis about which the block 26 may oscillate.

Since it is required that the motor 1'? he suspended from the universal-joint connection in a manner to permit rotation, a blocl: 28 is provided on the motor casing and has formed therein a bearing adapted to receive the stub shaft 27. It will be readily understood that the motor may be retained in position on the stub shaft in any one of a variety of ways and, in this particular construction, a connection is a complished h forming a circumferential groove in the shaft to receive a set screw 29, mounted in the block 26.

The rotation of the motor on the stub shaft 27 is effected by means of a train of gears actuated upon the rotation of the motor shaft 22. It will be seen in 1, that a worm 80, having one end slotted, is loosely mounted in a bearing provided in the bloclt 28 and is disposed in alinement with the shaft 22, the latter having a tongue formed on its end to project into the slot provided in the worm.

It will be apparent that the worm 30 may be retained in position in the bearing in any one of a variety of ways. in this particular embodiment of invention, in order to facilitate assemblage, the bearing is extended through the block 28 and provided, at its outer end, with. an internal thread for the reception of a cap 31., adapted to form a bearing for the end of the worm anc to hold it in engagement with the shaft 22.

As illustrated in Fig. 3, a shaft is rotatably mounted in a bearing provided in the block 28 and extends substantially at right angles to the axis of the worm 30. Connection is established between the shaft 32 and the worm 30 by means of a worm gear 33, fixed to the shaft32 and disposed in a chamber formed in the blocl: 28. The chamber in which the worm gear 33 is located is accessible from the end of the block and is closed by means of a cap 34,-.

In order to retain the axis of the shaft 22 inclined to the axis of rotation of the motor to give the fan wheel the desired circulatory movement, a brush-and-ring device is provided. i LS shown in i l, a ring 37 is disposed between a plurality of brushes 38, ans'ularly paced rbout the housis retained centrally positioned in the housing section with its axis coincident with the axis aboutwhich it 's desired to rotate the motor.

The ring 3? is carried by the housing section i i 'h attached to the motor, and

it will be r iily understood that thering may be set in any desired position relatire ient. Accordingly, the brushes 38 are housing section 15 and urged toward toe ring by means of springs d0.

will be observed that these springs held in position in the bushing and in gageinent with the brushes by plugs As shown, the plugs 41 are adapted to make threaded engagement with the bushin thereby providing a structure that is ea disass mbled for the re lacement of pa Further, the springs 40 urge the brus forward to compcnsat for wear.

The motor 17 being rotatably mounted, the conductors 19 cannot be directly c nnected to a con .mutator or collector rin carried by the motor. Consequently, in or er to supply the motor with electrical energy, collector rings l2 are disposed on the ring '37 carried by the motor and are located in alinement with the brushes 38.

Sine, it necessary to insulate the rings 12 from one another and from the motor 1 ring 3? preferably made of casing, ie some insulating material, such, for example, as hard rubber. ml e collector rings are constructed ime material capable of conducting electricity and are connected to the motor wind s.

The brushes 00, which are disposed to engage v he collector rings 42, are made from carbon or any other suitable material having wear-resisting properties. Since these brushes are resiliently mounted, the danger of destruction due to the ring being thrown slightly off center during operation, is greatly reduced.

The conductors 19 may be connected to the brushes n any well known manner. In this particular structure, sleeves made of the motor.

some conducting material )lL-.C3(l on shaft inclined to the motor a s. and means the brush and tire conductors soldered actuated by the motor shaft to effect rotaor otherwiseretained in cngagemen theretion of the motor. with. at. In a fan, in combination, a housing, a

In operation, when the motor circuit is closed, current flows through the conductors 19,the brushes and coll cto. ring 4 Vi hen the motor is energized,

the shaft 22 is rotated, and the pinion H5 is aijrtuated through the worm 30, worm ear 5:33 and shaft Since the pinion 85 1 in shaft, being suspended from the uni val joint COHDGCth'i-li, 3S oscillatei'l in different planes permitting the motor shaft to be osciliated in (i. erent planes.

Since the l'iousing section 16, is symmetrically dispo about the axis of rotation of the motor, the lower portion of the shaft 22 describes a path lying within the ring 20. The housing section 16, the lower portion of which is hemispherical in shape, is rotated in the ring. 20 about the axis of rotation of the motor, and the fan wheel 23 is given a circulatory movement.

Since the mechanism causing the rotation of the motor is connected to the shaft 22, the motor, by its own power, effects its iotation.

I would state, in conclusion, that, while the illustrated example constitutes a particular embodiment of my invention, I do not limit myself strictly to the details herein. illustrated, since, manifestly, the some may be considerably varied without departing from the spi it of the invention as defined in the appended claims.

claim. as my invention:

In a fan, in con'ibination, a motor disposed for rotation as a on a rotatable niotor shaft extending at an angle to the axis about which the motor rotates, a fan wheel 1 i by the shaft, and means adapted to e the mo or as a unit when the shazt is -ed there to give the fan whee a cirtor, mots m. as it operates.

in a fan, in combination, a housing, a

I motor provided. with a rotatable shaft, said motor being rotatably disposed in the housing, fan wheel carried by the shaft, and means carried by the housing (co-operative to retain said shaft as it rotates inclined to the axis of rotation of the motor, and means for rotating the motor as the shaft rotates, thereby to give the fan rheel a circulatory movement as it rotates.

S. In a f. i, in combination, a housing, a motor rotatably mounted in the housing, a motor armature sl aft inclined to t e axis of rotation of the motor, means carried by the housing to retain the motor armature motor provided with a rotatable shaft, said motor being rotatably disposed in the hous ing, a fan wheel carried. by the shaft and resilient means disposed in the hon. ing, cooperative to retain the shaft inclined to the axis of rotation of the motor, thereby to give the fan wheel. a circulatory movement as the motor rotates.

5. In a fan, in combination, a mot r oroyided with a shaft disposed for rotation about an erttei'iding at an angle to the shaft, a fan wheel carried by the sba; means resiliently disposed in the housing, co-operative to retain the shaft inclined to the axis of rotation of the motor, said means being adapted to deliver electrical energy to the motor. I

6. In a fan, in combination, a housing, motor provided with a rotatable sha mounted in the housing, sa d motor being s extend- .iiaft, a fan Wheel carried by ie shaft, a ring-andbrush device co-operative to retain tl e shaft inclined to the axis of rotation. of the motor.

7. In a fan, in combination, a housing, a motor provided with. a rotatable shaft disposed in the housing, said motor being disposed for rotation about an e s extending at an angle to th shaft, a wheel carried b the shaft a rin -and-brush device co-onerative to retain the shaft incl.-iecl to the axis of rotation of the motor, said ring-andbrush device being resiliently disposed in the housin 8. In a fan, in combination, a motor provided with a rotatable mounted in the housing, said disposed for rotation about an e11 ing at an angle to the shaft, a carried by the shaft, a ring ca ried by the motor, and, a plurality of l disposed in the housing, (co-operative with satin ring to retain the shaft inclined to the axis of rotation of the motor.

9. In a fan, in com iination, a housing. a

iotor provided with a she i disposed in the housing to permit rotation about an axis extending at an angle to the shaft, a f r wheel earried by the shaft, a ring she motor be by the motor, a plurality of brushes disposed extending at an angle to the shaft, a fan Wheel carried by the shaft, 21 ring carried by the motor, a plurality of brushes disposed in the housing, co-operative with said ring to retain the shaft inclined to the axis of rotation of the motor, a collector ring carried by said ring, and arranged to make contact with the brushes to effect the delivery of electrical energy to the motor, said ring serving to insulate the collector rings from one another and from the motor casing.

11. In a fan, in combination, a motor provided with a shaft, fan Wheel carried by the shaft, a universal-joint mounting adapted to support the motor, said mounting being disposed to permit rotation of the motor, and resilient means co-operative to retain the shaft inclined at an angle to the axis of rotation of the motor, thereby giving the fan Wheel a circulatory movement.

12. In fan, in combination, a motor provided with a rotatable shaft, a fan Wheel carried by the shaft, a universal-joint mounting ada ated to support the motor, said mounting being disposed to permit rotation of the motor, resilient means co-operative to retain the shaft inclined at an angle to the axis of rotation of the motor, and means actuated bythe shaft to effect the rotation of the motor.

13. In a fan, in combination, a motor provided with a shaft, a sectional housing to enclose the motor, one sectionof the hous ing being fixed in position and another carried by the motor, a fan Wheel carried by the shaft, said fan Wheel being positioned out side of said housing, a universal-joint mounting disposed to support the motor in the fixed housing section, said mounting being disposed to permit rotation of the motor, and means co-operative to retain the shaft inclined to the axis of rotation of the motor.

is. In a fan, in combination, a motor provided With shaft, a sectional housing for the motor, one section of the housing being fixed in position and another carried by the motor, a fan Wheel carried by he shaft in position outside of said housing, a universal- ;ioint mounting disposed to support the mo tor in the fixed housing section, said mount ing being disposed to permit rotation of the motor and means co-operative to retain the shaft inciined to the axis of rotation of the motor, one of said housing sections being the. sh *t, a sectional housing for the motor, one of said sections being fixed in position and the other movable, said fan Wheel being positioned outside the housing, means to sup port the motor in the fixed housing, said means being adapted to permit rotation of the motor and means co-operative to retain the shaft inclined to the axis of rotation of the motor, said movable housing section being carried by the motor and disposed to permit the rotation of the motor, thereby to give the fan Wheel a circulatory movement. 16. In a fan, in combination, a motorprovided with a shaft, a sectional housing for the motor, one section of said housing being fixed in position and the other being movable, a universal-joint mounting adapted to support the motor in the fixed housing section, said motor being rotatably connected to the universal-joint mounting, means cooperative to retain the shaft inclined at an angle to the axis of rotation of he motor,

said movable housii'ig section being by the motor and disposed to permit rotation of the motor, said shaft extending through the movable housing section, and a fan Wheel mounted on the end of the shaft, the rotation of said motor thereby serving to give the fan Wheel a circulatory movement.

1? In a fan, in combination, a motor provided With a shaft, a sectional housing for the motor, one sect-ion bein fixed in position and the other being movable, a universaljoint mounting adapted to support the motor in the fixed housing section, said motor being rotatably connected to the universaljoint mounting, a plurality of co-operating contact members carried by the motor, a l'iousing adapted'to retain the shaft inclined to the axis of rotation of the motor, said contact members serving to transmit electrical energy to the motor as it rotates, and a fan Wheel carried by the motor shaft.

18. In fan, in combination, a motor pro vided With a shaft, a sectional housing for the motor, one section being fixed in position and the other being movable, a universaloint mounting adapted to support the motor in the fixed housing section, said motor beingrotatably connected to the universal-joint mounting, a plurality of co-operating contact members carried by the motor, a housing adapted to retain the shaft inclined to the axis of rotation of the motor, said contact members serving to tra it clccti energy to the motor as it rotates, a in wheel carried by the motor shai and means actuated by the operation of the motor shaft to effect the rotation of the motor.

19. In a fan, in combination, a motor provided with a shaft, a sectional housing for the motor, one section being fixed in position and the other being movable, a universaljoint mounting adapted to support the motor in the fixed housing section, said motor being rotatably connected to the universal-joint mounting, a pluralit of co-operating contact members carried by the motor, a housing adapted to r tain the shaft inclined to the axis of rotation of the motor, said contact members serving to transmit electrical energy to the motor as it rotates, said contact members carried by the housing being resiliently mounted, a fan Wheel carried by the motor shaft and means actuated upon the operation of the motor shaft to effect the rotation of the ll'lOtOI', thereby serving to give the tan Wheel circulatory movement.

20. In a tan, in combination, a motor provided With a shaft, a sectional housing for the motor, one section of the housing being fixed in position, a universal-joint mounting disposed in a fixed housing section, a stub shaft carried by said joint mounting, a motor rotai'ably mounted on said stub shaft, the motor shaft being inclined to the stub shaft, and means actuated upon the operation of the motor shaft to effect the rotation ot' the motor about said stub shaft.

at. In a tan, in combination, a motor provic -with a rotatable shaft, said motor being disposed for rotation about an axis ezv tending at an angle to the axis of the shaft, a fan Wheel carried by the shaft, and means actuated by the motor shaft adapted to effect the rotation of the motor to give the tan wheel a circulatory movementas it rotates.

22. In a fan, in combination, a support, a motor provided with a rotatable shaft and carried by the support, said motor being disposed for rotation about an axis extending at an angle to the shaft, a fan Wheel carried by the shaft, and means for rotating the motor as the shaft rotates, thereby to move the fan Wheel in a predetern'iined path as it rotates.

In testimony whereof, I have hereunto subscribed my name this tth day of September, 1924.

CHRISTIAN AALBQRG. 

